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DSP不能过快的写I/O口的数据吗?



DSP写I/O口的数据时,必须要加延时吗?譬如说:

GpioDataRegs.GPFSET.bit.GPIOF10 = 1;
GpioDataRegs.GPFSET.bit.GPIOF11 = 1;
GpioDataRegs.GPFSET.bit.GPIOF12 = 1;

这中间必须要加延时吗?在网上查资料有人说:如果连续控制I/O写数据,中间一定要延时~!!否则在执行程序的时候只会执行最后一个。。。

这种说法正确吗?求专业人士解答